animal studies Flashcards
Konrad Lorenz 1935
type of experiment
field
Konrad Lorenz 1935
Aim
to see if goslings will imprint on mother or Lorenz
Konrad Lorenz 1935
sample
14 fertilised eggs
Konrad Lorenz 1935
method
experimental group saw Lorenz first after hatching, control group had usual experience of seeing their mother first
Konrad Lorenz 1935
findings
natural instinct for goslings to imprint on first large moving object they see (before 32 hours) as need food + protection
Harry Harlow 1959
Aim
investigate the nature of attachment in baby monkeys
Harry Harlow 1959
method
16 rhesus monkeys placed in a cage with 2 ‘mothers’
one made of wire, one wrapped in cloth
both had milk
Harry Harlow 1959
results
all monkeys spent most time with cloth mother even if wire mother was only one with the food
monkeys develop attachments based on contact comfort not food
AO3 weakness
- some may see use of animals in study as unethical
- animals have the right to not be researched/harmed
- using animals for benefit of humans
- monkeys in Harlows study all showed dysfunctional behaviour in adult life
- CA: although people may still not agree with it most would prefer animals/humans
AO3 strength + weakness
- generalisability to humans
- ducks can not be used to study human behaviour as needs and composition are very different
- BUT monkeys are very similar to humans so can be used to better understand human behaviour
- we share 98% of genes with rhesus monkeys
AO3 weakness (Lorenz)
- opposing evidence
- Guiton 1966: found chickens imprinted on and tried ti mate will yellow rubber gloves but with experience learnt to prefer other chickens
- shows imprinting can be reversed and not as permanent as Lorenz thought